Contratest
a. 对照试验的
🗣️ 情景例句
A man next to me was smoking,and smoke really bothers me.
我旁边的那个人抽烟，我受不了。
I think you have very attractive children.
我认为你有很吸引人的孩子。
Did you telephone Li Lei?
你给李磊打电话了吗？